A few years ago we had, through a local government grant, external wall insulation fitted. Recently we had some work to be done and a ladder placed against the wall pierced the render. The roofer doing this work said that the rendered wall should take the force of a ladder against it and that the render was not thick enough and not fit for purpose. Is he trying to get out of the damage done or could it be that the rendering was poor. The company was approved to do the work by the local authority.
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